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Vladgmru, Automotive Electrician

Category: Chevy

Satisfied Customers: 2564

Experience: I've been working with American made cars since 1992.

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I have a 1997 Chevy K1500 5.7L (gasoline). Tonight when I

Customer Question

I have a 1997 Chevy K1500 5.7L? (gasoline). Tonight when I was driving home it experianced a problem. No abnormal indications on the gages. No abnormal sounds. I swear it kinda hicuped and gradually slowed down. Almost like it was starved for fuel. I could let it sit for a few minutes and it would restart. Again no abnormal indications. Within another few minutes it would die again... Looking under the hood, I noticed nothing. Oil was good. There was condensation in the tailpipes which was clear with no strange smell like oil or coolant. No leaks underneath. Fuel filter was replaced two years ago. I'm thinking fuel pump? Then again I'm not a mech.

Five pins total. Two on the diagram side, three on the non-diagram side. I'm looking at the set of three.

The the first pin on the left, as I look at the non-diagramed side, appears to have a burn mark. I can see a small dot of copper vs the silver coloring of the pin. and what appears to be the burn mark above it. The middle pin in this set of three also appears to have a burn mark however, it does not have the copper coloring like the other pin.

4Your Fluke leads are not a jumper wire, unless you set up the Fluke for current (Amper)measurement .

5.It is Ok that the pump is running when you supply the power.

The question is, does the pump produce enough pressure? Only a fuel pressure gauge can tell.

I have forgotten to tell you about another problem place on these vehicles, it is a fuel pump module connector. One of two wires/pins( A grey +12, or a Black ground) might be burnt. Unfortunately, it is very hard to remove this connector without removing the fuel tank.

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